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Commit | Line | Data |
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745f7a8c | 1 | #include "cache.h" |
a49d2834 | 2 | #include "repository.h" |
b2141fc1 | 3 | #include "config.h" |
697cc8ef | 4 | #include "lockfile.h" |
745f7a8c NTND |
5 | #include "refs.h" |
6 | #include "pkt-line.h" | |
7 | #include "commit.h" | |
8 | #include "tag.h" | |
9 | #include "exec_cmd.h" | |
10 | #include "pack.h" | |
11 | #include "sideband.h" | |
12 | #include "fetch-pack.h" | |
13 | #include "remote.h" | |
14 | #include "run-command.h" | |
47a59185 | 15 | #include "connect.h" |
745f7a8c NTND |
16 | #include "transport.h" |
17 | #include "version.h" | |
099327b5 | 18 | #include "prio-queue.h" |
beea4152 | 19 | #include "sha1-array.h" |
fdb69d33 | 20 | #include "oidset.h" |
0abe14f6 | 21 | #include "packfile.h" |
cbd53a21 | 22 | #include "object-store.h" |
745f7a8c NTND |
23 | |
24 | static int transfer_unpack_limit = -1; | |
25 | static int fetch_unpack_limit = -1; | |
26 | static int unpack_limit = 100; | |
27 | static int prefer_ofs_delta = 1; | |
28 | static int no_done; | |
508ea882 | 29 | static int deepen_since_ok; |
a45a2600 | 30 | static int deepen_not_ok; |
745f7a8c NTND |
31 | static int fetch_fsck_objects = -1; |
32 | static int transfer_fsck_objects = -1; | |
33 | static int agent_supported; | |
640d8b72 | 34 | static int server_supports_filtering; |
6035d6aa NTND |
35 | static struct lock_file shallow_lock; |
36 | static const char *alternate_shallow_file; | |
745f7a8c | 37 | |
208acbfb | 38 | /* Remember to update object flag allocation in object.h */ |
745f7a8c NTND |
39 | #define COMPLETE (1U << 0) |
40 | #define COMMON (1U << 1) | |
41 | #define COMMON_REF (1U << 2) | |
42 | #define SEEN (1U << 3) | |
43 | #define POPPED (1U << 4) | |
41a078c6 | 44 | #define ALTERNATE (1U << 5) |
745f7a8c NTND |
45 | |
46 | static int marked; | |
47 | ||
48 | /* | |
49 | * After sending this many "have"s if we do not get any new ACK , we | |
50 | * give up traversing our history. | |
51 | */ | |
52 | #define MAX_IN_VAIN 256 | |
53 | ||
099327b5 | 54 | static struct prio_queue rev_list = { compare_commits_by_commit_date }; |
7199c093 FM |
55 | static int non_common_revs, multi_ack, use_sideband; |
56 | /* Allow specifying sha1 if it is a ref tip. */ | |
57 | #define ALLOW_TIP_SHA1 01 | |
68ee6289 FM |
58 | /* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ |
59 | #define ALLOW_REACHABLE_SHA1 02 | |
7199c093 | 60 | static unsigned int allow_unadvertised_object_request; |
745f7a8c | 61 | |
0d789a5b NTND |
62 | __attribute__((format (printf, 2, 3))) |
63 | static inline void print_verbose(const struct fetch_pack_args *args, | |
64 | const char *fmt, ...) | |
65 | { | |
66 | va_list params; | |
67 | ||
68 | if (!args->verbose) | |
69 | return; | |
70 | ||
71 | va_start(params, fmt); | |
72 | vfprintf(stderr, fmt, params); | |
73 | va_end(params); | |
74 | fputc('\n', stderr); | |
75 | } | |
76 | ||
41a078c6 JK |
77 | struct alternate_object_cache { |
78 | struct object **items; | |
79 | size_t nr, alloc; | |
80 | }; | |
81 | ||
82 | static void cache_one_alternate(const char *refname, | |
83 | const struct object_id *oid, | |
84 | void *vcache) | |
85 | { | |
86 | struct alternate_object_cache *cache = vcache; | |
c251c83d | 87 | struct object *obj = parse_object(oid); |
41a078c6 JK |
88 | |
89 | if (!obj || (obj->flags & ALTERNATE)) | |
90 | return; | |
91 | ||
92 | obj->flags |= ALTERNATE; | |
93 | ALLOC_GROW(cache->items, cache->nr + 1, cache->alloc); | |
94 | cache->items[cache->nr++] = obj; | |
95 | } | |
96 | ||
97 | static void for_each_cached_alternate(void (*cb)(struct object *)) | |
98 | { | |
99 | static int initialized; | |
100 | static struct alternate_object_cache cache; | |
101 | size_t i; | |
102 | ||
103 | if (!initialized) { | |
104 | for_each_alternate_ref(cache_one_alternate, &cache); | |
105 | initialized = 1; | |
106 | } | |
107 | ||
108 | for (i = 0; i < cache.nr; i++) | |
109 | cb(cache.items[i]); | |
110 | } | |
111 | ||
745f7a8c NTND |
112 | static void rev_list_push(struct commit *commit, int mark) |
113 | { | |
114 | if (!(commit->object.flags & mark)) { | |
115 | commit->object.flags |= mark; | |
116 | ||
0064053b JK |
117 | if (parse_commit(commit)) |
118 | return; | |
745f7a8c | 119 | |
099327b5 | 120 | prio_queue_put(&rev_list, commit); |
745f7a8c NTND |
121 | |
122 | if (!(commit->object.flags & COMMON)) | |
123 | non_common_revs++; | |
124 | } | |
125 | } | |
126 | ||
1b283377 | 127 | static int rev_list_insert_ref(const char *refname, const struct object_id *oid) |
745f7a8c | 128 | { |
c251c83d | 129 | struct object *o = deref_tag(parse_object(oid), refname, 0); |
745f7a8c NTND |
130 | |
131 | if (o && o->type == OBJ_COMMIT) | |
132 | rev_list_push((struct commit *)o, SEEN); | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
b1b49c6e MH |
137 | static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid, |
138 | int flag, void *cb_data) | |
745f7a8c | 139 | { |
1b283377 | 140 | return rev_list_insert_ref(refname, oid); |
b1b49c6e MH |
141 | } |
142 | ||
c50fb6ce MH |
143 | static int clear_marks(const char *refname, const struct object_id *oid, |
144 | int flag, void *cb_data) | |
745f7a8c | 145 | { |
c251c83d | 146 | struct object *o = deref_tag(parse_object(oid), refname, 0); |
745f7a8c NTND |
147 | |
148 | if (o && o->type == OBJ_COMMIT) | |
149 | clear_commit_marks((struct commit *)o, | |
150 | COMMON | COMMON_REF | SEEN | POPPED); | |
151 | return 0; | |
152 | } | |
153 | ||
154 | /* | |
155 | This function marks a rev and its ancestors as common. | |
156 | In some cases, it is desirable to mark only the ancestors (for example | |
157 | when only the server does not yet know that they are common). | |
158 | */ | |
159 | ||
160 | static void mark_common(struct commit *commit, | |
161 | int ancestors_only, int dont_parse) | |
162 | { | |
163 | if (commit != NULL && !(commit->object.flags & COMMON)) { | |
164 | struct object *o = (struct object *)commit; | |
165 | ||
166 | if (!ancestors_only) | |
167 | o->flags |= COMMON; | |
168 | ||
169 | if (!(o->flags & SEEN)) | |
170 | rev_list_push(commit, SEEN); | |
171 | else { | |
172 | struct commit_list *parents; | |
173 | ||
174 | if (!ancestors_only && !(o->flags & POPPED)) | |
175 | non_common_revs--; | |
176 | if (!o->parsed && !dont_parse) | |
177 | if (parse_commit(commit)) | |
178 | return; | |
179 | ||
180 | for (parents = commit->parents; | |
181 | parents; | |
182 | parents = parents->next) | |
183 | mark_common(parents->item, 0, dont_parse); | |
184 | } | |
185 | } | |
186 | } | |
187 | ||
188 | /* | |
189 | Get the next rev to send, ignoring the common. | |
190 | */ | |
191 | ||
1b283377 | 192 | static const struct object_id *get_rev(void) |
745f7a8c NTND |
193 | { |
194 | struct commit *commit = NULL; | |
195 | ||
196 | while (commit == NULL) { | |
197 | unsigned int mark; | |
198 | struct commit_list *parents; | |
199 | ||
099327b5 | 200 | if (rev_list.nr == 0 || non_common_revs == 0) |
745f7a8c NTND |
201 | return NULL; |
202 | ||
099327b5 | 203 | commit = prio_queue_get(&rev_list); |
0064053b | 204 | parse_commit(commit); |
745f7a8c NTND |
205 | parents = commit->parents; |
206 | ||
207 | commit->object.flags |= POPPED; | |
208 | if (!(commit->object.flags & COMMON)) | |
209 | non_common_revs--; | |
210 | ||
211 | if (commit->object.flags & COMMON) { | |
212 | /* do not send "have", and ignore ancestors */ | |
213 | commit = NULL; | |
214 | mark = COMMON | SEEN; | |
215 | } else if (commit->object.flags & COMMON_REF) | |
216 | /* send "have", and ignore ancestors */ | |
217 | mark = COMMON | SEEN; | |
218 | else | |
219 | /* send "have", also for its ancestors */ | |
220 | mark = SEEN; | |
221 | ||
222 | while (parents) { | |
223 | if (!(parents->item->object.flags & SEEN)) | |
224 | rev_list_push(parents->item, mark); | |
225 | if (mark & COMMON) | |
226 | mark_common(parents->item, 1, 0); | |
227 | parents = parents->next; | |
228 | } | |
745f7a8c NTND |
229 | } |
230 | ||
1b283377 | 231 | return &commit->object.oid; |
745f7a8c NTND |
232 | } |
233 | ||
234 | enum ack_type { | |
235 | NAK = 0, | |
236 | ACK, | |
237 | ACK_continue, | |
238 | ACK_common, | |
239 | ACK_ready | |
240 | }; | |
241 | ||
242 | static void consume_shallow_list(struct fetch_pack_args *args, int fd) | |
243 | { | |
79891cb9 | 244 | if (args->stateless_rpc && args->deepen) { |
745f7a8c NTND |
245 | /* If we sent a depth we will get back "duplicate" |
246 | * shallow and unshallow commands every time there | |
247 | * is a block of have lines exchanged. | |
248 | */ | |
74543a04 JK |
249 | char *line; |
250 | while ((line = packet_read_line(fd, NULL))) { | |
59556548 | 251 | if (starts_with(line, "shallow ")) |
745f7a8c | 252 | continue; |
59556548 | 253 | if (starts_with(line, "unshallow ")) |
745f7a8c | 254 | continue; |
1dd73e20 | 255 | die(_("git fetch-pack: expected shallow list")); |
745f7a8c NTND |
256 | } |
257 | } | |
258 | } | |
259 | ||
1b283377 | 260 | static enum ack_type get_ack(int fd, struct object_id *result_oid) |
745f7a8c | 261 | { |
74543a04 JK |
262 | int len; |
263 | char *line = packet_read_line(fd, &len); | |
82e56767 | 264 | const char *arg; |
745f7a8c | 265 | |
bc9d4dc5 JK |
266 | if (!line) |
267 | die(_("git fetch-pack: expected ACK/NAK, got a flush packet")); | |
745f7a8c NTND |
268 | if (!strcmp(line, "NAK")) |
269 | return NAK; | |
82e56767 | 270 | if (skip_prefix(line, "ACK ", &arg)) { |
1b283377 | 271 | if (!get_oid_hex(arg, result_oid)) { |
82e56767 JK |
272 | arg += 40; |
273 | len -= arg - line; | |
274 | if (len < 1) | |
030e9dd6 | 275 | return ACK; |
82e56767 | 276 | if (strstr(arg, "continue")) |
745f7a8c | 277 | return ACK_continue; |
82e56767 | 278 | if (strstr(arg, "common")) |
745f7a8c | 279 | return ACK_common; |
82e56767 | 280 | if (strstr(arg, "ready")) |
745f7a8c NTND |
281 | return ACK_ready; |
282 | return ACK; | |
283 | } | |
284 | } | |
8e2c7bef JT |
285 | if (skip_prefix(line, "ERR ", &arg)) |
286 | die(_("remote error: %s"), arg); | |
dfbfb9f3 | 287 | die(_("git fetch-pack: expected ACK/NAK, got '%s'"), line); |
745f7a8c NTND |
288 | } |
289 | ||
290 | static void send_request(struct fetch_pack_args *args, | |
291 | int fd, struct strbuf *buf) | |
292 | { | |
293 | if (args->stateless_rpc) { | |
294 | send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX); | |
295 | packet_flush(fd); | |
296 | } else | |
cdf4fb8e | 297 | write_or_die(fd, buf->buf, buf->len); |
745f7a8c NTND |
298 | } |
299 | ||
41a078c6 | 300 | static void insert_one_alternate_object(struct object *obj) |
745f7a8c | 301 | { |
1b283377 | 302 | rev_list_insert_ref(NULL, &obj->oid); |
745f7a8c NTND |
303 | } |
304 | ||
305 | #define INITIAL_FLUSH 16 | |
306 | #define PIPESAFE_FLUSH 32 | |
da470981 | 307 | #define LARGE_FLUSH 16384 |
745f7a8c NTND |
308 | |
309 | static int next_flush(struct fetch_pack_args *args, int count) | |
310 | { | |
da470981 JT |
311 | if (args->stateless_rpc) { |
312 | if (count < LARGE_FLUSH) | |
313 | count <<= 1; | |
314 | else | |
315 | count = count * 11 / 10; | |
316 | } else { | |
317 | if (count < PIPESAFE_FLUSH) | |
318 | count <<= 1; | |
319 | else | |
320 | count += PIPESAFE_FLUSH; | |
321 | } | |
745f7a8c NTND |
322 | return count; |
323 | } | |
324 | ||
325 | static int find_common(struct fetch_pack_args *args, | |
1b283377 | 326 | int fd[2], struct object_id *result_oid, |
745f7a8c NTND |
327 | struct ref *refs) |
328 | { | |
329 | int fetching; | |
330 | int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval; | |
1b283377 | 331 | const struct object_id *oid; |
745f7a8c NTND |
332 | unsigned in_vain = 0; |
333 | int got_continue = 0; | |
334 | int got_ready = 0; | |
335 | struct strbuf req_buf = STRBUF_INIT; | |
336 | size_t state_len = 0; | |
337 | ||
338 | if (args->stateless_rpc && multi_ack == 1) | |
1dd73e20 | 339 | die(_("--stateless-rpc requires multi_ack_detailed")); |
745f7a8c NTND |
340 | if (marked) |
341 | for_each_ref(clear_marks, NULL); | |
342 | marked = 1; | |
343 | ||
b1b49c6e | 344 | for_each_ref(rev_list_insert_ref_oid, NULL); |
41a078c6 | 345 | for_each_cached_alternate(insert_one_alternate_object); |
745f7a8c NTND |
346 | |
347 | fetching = 0; | |
348 | for ( ; refs ; refs = refs->next) { | |
1b283377 | 349 | struct object_id *remote = &refs->old_oid; |
745f7a8c NTND |
350 | const char *remote_hex; |
351 | struct object *o; | |
352 | ||
353 | /* | |
354 | * If that object is complete (i.e. it is an ancestor of a | |
355 | * local ref), we tell them we have it but do not have to | |
356 | * tell them about its ancestors, which they already know | |
357 | * about. | |
358 | * | |
359 | * We use lookup_object here because we are only | |
360 | * interested in the case we *know* the object is | |
361 | * reachable and we have already scanned it. | |
362 | */ | |
1b283377 | 363 | if (((o = lookup_object(remote->hash)) != NULL) && |
745f7a8c NTND |
364 | (o->flags & COMPLETE)) { |
365 | continue; | |
366 | } | |
367 | ||
1b283377 | 368 | remote_hex = oid_to_hex(remote); |
745f7a8c NTND |
369 | if (!fetching) { |
370 | struct strbuf c = STRBUF_INIT; | |
371 | if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed"); | |
372 | if (multi_ack == 1) strbuf_addstr(&c, " multi_ack"); | |
373 | if (no_done) strbuf_addstr(&c, " no-done"); | |
374 | if (use_sideband == 2) strbuf_addstr(&c, " side-band-64k"); | |
375 | if (use_sideband == 1) strbuf_addstr(&c, " side-band"); | |
cccf74e2 | 376 | if (args->deepen_relative) strbuf_addstr(&c, " deepen-relative"); |
745f7a8c NTND |
377 | if (args->use_thin_pack) strbuf_addstr(&c, " thin-pack"); |
378 | if (args->no_progress) strbuf_addstr(&c, " no-progress"); | |
379 | if (args->include_tag) strbuf_addstr(&c, " include-tag"); | |
380 | if (prefer_ofs_delta) strbuf_addstr(&c, " ofs-delta"); | |
508ea882 | 381 | if (deepen_since_ok) strbuf_addstr(&c, " deepen-since"); |
a45a2600 | 382 | if (deepen_not_ok) strbuf_addstr(&c, " deepen-not"); |
745f7a8c NTND |
383 | if (agent_supported) strbuf_addf(&c, " agent=%s", |
384 | git_user_agent_sanitized()); | |
640d8b72 JH |
385 | if (args->filter_options.choice) |
386 | strbuf_addstr(&c, " filter"); | |
745f7a8c NTND |
387 | packet_buf_write(&req_buf, "want %s%s\n", remote_hex, c.buf); |
388 | strbuf_release(&c); | |
389 | } else | |
390 | packet_buf_write(&req_buf, "want %s\n", remote_hex); | |
391 | fetching++; | |
392 | } | |
393 | ||
394 | if (!fetching) { | |
395 | strbuf_release(&req_buf); | |
396 | packet_flush(fd[1]); | |
397 | return 1; | |
398 | } | |
399 | ||
400 | if (is_repository_shallow()) | |
1a30f5a2 | 401 | write_shallow_commits(&req_buf, 1, NULL); |
745f7a8c NTND |
402 | if (args->depth > 0) |
403 | packet_buf_write(&req_buf, "deepen %d", args->depth); | |
508ea882 | 404 | if (args->deepen_since) { |
dddbad72 | 405 | timestamp_t max_age = approxidate(args->deepen_since); |
cb71f8bd | 406 | packet_buf_write(&req_buf, "deepen-since %"PRItime, max_age); |
508ea882 | 407 | } |
a45a2600 NTND |
408 | if (args->deepen_not) { |
409 | int i; | |
410 | for (i = 0; i < args->deepen_not->nr; i++) { | |
411 | struct string_list_item *s = args->deepen_not->items + i; | |
412 | packet_buf_write(&req_buf, "deepen-not %s", s->string); | |
413 | } | |
414 | } | |
640d8b72 JH |
415 | if (server_supports_filtering && args->filter_options.choice) |
416 | packet_buf_write(&req_buf, "filter %s", | |
417 | args->filter_options.filter_spec); | |
745f7a8c NTND |
418 | packet_buf_flush(&req_buf); |
419 | state_len = req_buf.len; | |
420 | ||
79891cb9 | 421 | if (args->deepen) { |
74543a04 | 422 | char *line; |
ae021d87 | 423 | const char *arg; |
1b283377 | 424 | struct object_id oid; |
745f7a8c NTND |
425 | |
426 | send_request(args, fd[1], &req_buf); | |
74543a04 | 427 | while ((line = packet_read_line(fd[0], NULL))) { |
ae021d87 | 428 | if (skip_prefix(line, "shallow ", &arg)) { |
1b283377 | 429 | if (get_oid_hex(arg, &oid)) |
1dd73e20 | 430 | die(_("invalid shallow line: %s"), line); |
19143f13 | 431 | register_shallow(the_repository, &oid); |
745f7a8c NTND |
432 | continue; |
433 | } | |
ae021d87 | 434 | if (skip_prefix(line, "unshallow ", &arg)) { |
1b283377 | 435 | if (get_oid_hex(arg, &oid)) |
1dd73e20 | 436 | die(_("invalid unshallow line: %s"), line); |
1b283377 | 437 | if (!lookup_object(oid.hash)) |
1dd73e20 | 438 | die(_("object not found: %s"), line); |
745f7a8c | 439 | /* make sure that it is parsed as shallow */ |
c251c83d | 440 | if (!parse_object(&oid)) |
1dd73e20 | 441 | die(_("error in object: %s"), line); |
e92b848c | 442 | if (unregister_shallow(&oid)) |
1dd73e20 | 443 | die(_("no shallow found: %s"), line); |
745f7a8c NTND |
444 | continue; |
445 | } | |
1dd73e20 | 446 | die(_("expected shallow/unshallow, got %s"), line); |
745f7a8c NTND |
447 | } |
448 | } else if (!args->stateless_rpc) | |
449 | send_request(args, fd[1], &req_buf); | |
450 | ||
451 | if (!args->stateless_rpc) { | |
452 | /* If we aren't using the stateless-rpc interface | |
453 | * we don't need to retain the headers. | |
454 | */ | |
455 | strbuf_setlen(&req_buf, 0); | |
456 | state_len = 0; | |
457 | } | |
458 | ||
459 | flushes = 0; | |
460 | retval = -1; | |
88e2f9ed JT |
461 | if (args->no_dependents) |
462 | goto done; | |
1b283377 | 463 | while ((oid = get_rev())) { |
464 | packet_buf_write(&req_buf, "have %s\n", oid_to_hex(oid)); | |
465 | print_verbose(args, "have %s", oid_to_hex(oid)); | |
745f7a8c NTND |
466 | in_vain++; |
467 | if (flush_at <= ++count) { | |
468 | int ack; | |
469 | ||
470 | packet_buf_flush(&req_buf); | |
471 | send_request(args, fd[1], &req_buf); | |
472 | strbuf_setlen(&req_buf, state_len); | |
473 | flushes++; | |
474 | flush_at = next_flush(args, count); | |
475 | ||
476 | /* | |
477 | * We keep one window "ahead" of the other side, and | |
478 | * will wait for an ACK only on the next one | |
479 | */ | |
480 | if (!args->stateless_rpc && count == INITIAL_FLUSH) | |
481 | continue; | |
482 | ||
483 | consume_shallow_list(args, fd[0]); | |
484 | do { | |
1b283377 | 485 | ack = get_ack(fd[0], result_oid); |
0d789a5b | 486 | if (ack) |
1dd73e20 | 487 | print_verbose(args, _("got %s %d %s"), "ack", |
1b283377 | 488 | ack, oid_to_hex(result_oid)); |
745f7a8c NTND |
489 | switch (ack) { |
490 | case ACK: | |
491 | flushes = 0; | |
492 | multi_ack = 0; | |
493 | retval = 0; | |
494 | goto done; | |
495 | case ACK_common: | |
496 | case ACK_ready: | |
497 | case ACK_continue: { | |
498 | struct commit *commit = | |
bc83266a | 499 | lookup_commit(result_oid); |
745f7a8c | 500 | if (!commit) |
1b283377 | 501 | die(_("invalid commit %s"), oid_to_hex(result_oid)); |
745f7a8c NTND |
502 | if (args->stateless_rpc |
503 | && ack == ACK_common | |
504 | && !(commit->object.flags & COMMON)) { | |
505 | /* We need to replay the have for this object | |
506 | * on the next RPC request so the peer knows | |
507 | * it is in common with us. | |
508 | */ | |
1b283377 | 509 | const char *hex = oid_to_hex(result_oid); |
745f7a8c NTND |
510 | packet_buf_write(&req_buf, "have %s\n", hex); |
511 | state_len = req_buf.len; | |
06b3d386 JT |
512 | /* |
513 | * Reset in_vain because an ack | |
514 | * for this commit has not been | |
515 | * seen. | |
516 | */ | |
517 | in_vain = 0; | |
518 | } else if (!args->stateless_rpc | |
519 | || ack != ACK_common) | |
520 | in_vain = 0; | |
745f7a8c NTND |
521 | mark_common(commit, 0, 1); |
522 | retval = 0; | |
745f7a8c NTND |
523 | got_continue = 1; |
524 | if (ack == ACK_ready) { | |
099327b5 | 525 | clear_prio_queue(&rev_list); |
745f7a8c NTND |
526 | got_ready = 1; |
527 | } | |
528 | break; | |
529 | } | |
530 | } | |
531 | } while (ack); | |
532 | flushes--; | |
533 | if (got_continue && MAX_IN_VAIN < in_vain) { | |
1dd73e20 | 534 | print_verbose(args, _("giving up")); |
745f7a8c NTND |
535 | break; /* give up */ |
536 | } | |
537 | } | |
538 | } | |
539 | done: | |
540 | if (!got_ready || !no_done) { | |
541 | packet_buf_write(&req_buf, "done\n"); | |
542 | send_request(args, fd[1], &req_buf); | |
543 | } | |
1dd73e20 | 544 | print_verbose(args, _("done")); |
745f7a8c NTND |
545 | if (retval != 0) { |
546 | multi_ack = 0; | |
547 | flushes++; | |
548 | } | |
549 | strbuf_release(&req_buf); | |
550 | ||
ff62eca7 NTND |
551 | if (!got_ready || !no_done) |
552 | consume_shallow_list(args, fd[0]); | |
745f7a8c | 553 | while (flushes || multi_ack) { |
1b283377 | 554 | int ack = get_ack(fd[0], result_oid); |
745f7a8c | 555 | if (ack) { |
1dd73e20 | 556 | print_verbose(args, _("got %s (%d) %s"), "ack", |
1b283377 | 557 | ack, oid_to_hex(result_oid)); |
745f7a8c NTND |
558 | if (ack == ACK) |
559 | return 0; | |
560 | multi_ack = 1; | |
561 | continue; | |
562 | } | |
563 | flushes--; | |
564 | } | |
565 | /* it is no error to fetch into a completely empty repo */ | |
566 | return count ? retval : 0; | |
567 | } | |
568 | ||
569 | static struct commit_list *complete; | |
570 | ||
1b283377 | 571 | static int mark_complete(const struct object_id *oid) |
745f7a8c | 572 | { |
c251c83d | 573 | struct object *o = parse_object(oid); |
745f7a8c NTND |
574 | |
575 | while (o && o->type == OBJ_TAG) { | |
576 | struct tag *t = (struct tag *) o; | |
577 | if (!t->tagged) | |
578 | break; /* broken repository */ | |
579 | o->flags |= COMPLETE; | |
c251c83d | 580 | o = parse_object(&t->tagged->oid); |
745f7a8c NTND |
581 | } |
582 | if (o && o->type == OBJ_COMMIT) { | |
583 | struct commit *commit = (struct commit *)o; | |
584 | if (!(commit->object.flags & COMPLETE)) { | |
585 | commit->object.flags |= COMPLETE; | |
16445242 | 586 | commit_list_insert(commit, &complete); |
745f7a8c NTND |
587 | } |
588 | } | |
589 | return 0; | |
590 | } | |
591 | ||
f8ee4d85 MH |
592 | static int mark_complete_oid(const char *refname, const struct object_id *oid, |
593 | int flag, void *cb_data) | |
594 | { | |
1b283377 | 595 | return mark_complete(oid); |
f8ee4d85 MH |
596 | } |
597 | ||
745f7a8c | 598 | static void mark_recent_complete_commits(struct fetch_pack_args *args, |
dddbad72 | 599 | timestamp_t cutoff) |
745f7a8c NTND |
600 | { |
601 | while (complete && cutoff <= complete->item->date) { | |
1dd73e20 | 602 | print_verbose(args, _("Marking %s as complete"), |
0d789a5b | 603 | oid_to_hex(&complete->item->object.oid)); |
745f7a8c NTND |
604 | pop_most_recent_commit(&complete, COMPLETE); |
605 | } | |
606 | } | |
607 | ||
fdb69d33 JT |
608 | static void add_refs_to_oidset(struct oidset *oids, struct ref *refs) |
609 | { | |
610 | for (; refs; refs = refs->next) | |
611 | oidset_insert(oids, &refs->old_oid); | |
612 | } | |
613 | ||
614 | static int tip_oids_contain(struct oidset *tip_oids, | |
615 | struct ref *unmatched, struct ref *newlist, | |
616 | const struct object_id *id) | |
617 | { | |
618 | /* | |
619 | * Note that this only looks at the ref lists the first time it's | |
620 | * called. This works out in filter_refs() because even though it may | |
621 | * add to "newlist" between calls, the additions will always be for | |
622 | * oids that are already in the set. | |
623 | */ | |
9e6fabde | 624 | if (!tip_oids->map.map.tablesize) { |
fdb69d33 JT |
625 | add_refs_to_oidset(tip_oids, unmatched); |
626 | add_refs_to_oidset(tip_oids, newlist); | |
627 | } | |
628 | return oidset_contains(tip_oids, id); | |
629 | } | |
630 | ||
745f7a8c | 631 | static void filter_refs(struct fetch_pack_args *args, |
f2db854d JH |
632 | struct ref **refs, |
633 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
634 | { |
635 | struct ref *newlist = NULL; | |
636 | struct ref **newtail = &newlist; | |
fdb69d33 | 637 | struct ref *unmatched = NULL; |
745f7a8c | 638 | struct ref *ref, *next; |
fdb69d33 | 639 | struct oidset tip_oids = OIDSET_INIT; |
f2db854d | 640 | int i; |
745f7a8c | 641 | |
f2db854d | 642 | i = 0; |
745f7a8c NTND |
643 | for (ref = *refs; ref; ref = next) { |
644 | int keep = 0; | |
645 | next = ref->next; | |
f2db854d | 646 | |
50e19a83 | 647 | if (starts_with(ref->name, "refs/") && |
4c224081 | 648 | check_refname_format(ref->name, 0)) |
745f7a8c NTND |
649 | ; /* trash */ |
650 | else { | |
f2db854d JH |
651 | while (i < nr_sought) { |
652 | int cmp = strcmp(ref->name, sought[i]->name); | |
745f7a8c NTND |
653 | if (cmp < 0) |
654 | break; /* definitely do not have it */ | |
655 | else if (cmp == 0) { | |
656 | keep = 1; /* definitely have it */ | |
d56583de | 657 | sought[i]->match_status = REF_MATCHED; |
745f7a8c | 658 | } |
f2db854d | 659 | i++; |
745f7a8c NTND |
660 | } |
661 | } | |
662 | ||
f2db854d | 663 | if (!keep && args->fetch_all && |
79891cb9 | 664 | (!args->deepen || !starts_with(ref->name, "refs/tags/"))) |
745f7a8c NTND |
665 | keep = 1; |
666 | ||
667 | if (keep) { | |
668 | *newtail = ref; | |
669 | ref->next = NULL; | |
670 | newtail = &ref->next; | |
671 | } else { | |
fdb69d33 JT |
672 | ref->next = unmatched; |
673 | unmatched = ref; | |
745f7a8c NTND |
674 | } |
675 | } | |
676 | ||
6e7b66ee | 677 | /* Append unmatched requests to the list */ |
d56583de | 678 | for (i = 0; i < nr_sought; i++) { |
1b283377 | 679 | struct object_id oid; |
680 | const char *p; | |
b7916422 | 681 | |
d56583de MM |
682 | ref = sought[i]; |
683 | if (ref->match_status != REF_NOT_MATCHED) | |
684 | continue; | |
1b283377 | 685 | if (parse_oid_hex(ref->name, &oid, &p) || |
686 | *p != '\0' || | |
687 | oidcmp(&oid, &ref->old_oid)) | |
d56583de | 688 | continue; |
6e7b66ee | 689 | |
d56583de | 690 | if ((allow_unadvertised_object_request & |
fdb69d33 JT |
691 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)) || |
692 | tip_oids_contain(&tip_oids, unmatched, newlist, | |
693 | &ref->old_oid)) { | |
d56583de | 694 | ref->match_status = REF_MATCHED; |
c3c17bf1 JK |
695 | *newtail = copy_ref(ref); |
696 | newtail = &(*newtail)->next; | |
d56583de MM |
697 | } else { |
698 | ref->match_status = REF_UNADVERTISED_NOT_ALLOWED; | |
6e7b66ee JH |
699 | } |
700 | } | |
fdb69d33 JT |
701 | |
702 | oidset_clear(&tip_oids); | |
703 | for (ref = unmatched; ref; ref = next) { | |
704 | next = ref->next; | |
705 | free(ref); | |
706 | } | |
707 | ||
745f7a8c NTND |
708 | *refs = newlist; |
709 | } | |
710 | ||
41a078c6 | 711 | static void mark_alternate_complete(struct object *obj) |
745f7a8c | 712 | { |
1b283377 | 713 | mark_complete(&obj->oid); |
745f7a8c NTND |
714 | } |
715 | ||
024aa469 TI |
716 | struct loose_object_iter { |
717 | struct oidset *loose_object_set; | |
718 | struct ref *refs; | |
719 | }; | |
720 | ||
721 | /* | |
722 | * If the number of refs is not larger than the number of loose objects, | |
723 | * this function stops inserting. | |
724 | */ | |
725 | static int add_loose_objects_to_set(const struct object_id *oid, | |
726 | const char *path, | |
727 | void *data) | |
728 | { | |
729 | struct loose_object_iter *iter = data; | |
730 | oidset_insert(iter->loose_object_set, oid); | |
731 | if (iter->refs == NULL) | |
732 | return 1; | |
733 | ||
734 | iter->refs = iter->refs->next; | |
735 | return 0; | |
736 | } | |
737 | ||
745f7a8c | 738 | static int everything_local(struct fetch_pack_args *args, |
f2db854d JH |
739 | struct ref **refs, |
740 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
741 | { |
742 | struct ref *ref; | |
743 | int retval; | |
a1c6d7c1 | 744 | int old_save_commit_buffer = save_commit_buffer; |
dddbad72 | 745 | timestamp_t cutoff = 0; |
024aa469 TI |
746 | struct oidset loose_oid_set = OIDSET_INIT; |
747 | int use_oidset = 0; | |
748 | struct loose_object_iter iter = {&loose_oid_set, *refs}; | |
749 | ||
750 | /* Enumerate all loose objects or know refs are not so many. */ | |
751 | use_oidset = !for_each_loose_object(add_loose_objects_to_set, | |
752 | &iter, 0); | |
745f7a8c NTND |
753 | |
754 | save_commit_buffer = 0; | |
755 | ||
756 | for (ref = *refs; ref; ref = ref->next) { | |
757 | struct object *o; | |
024aa469 | 758 | unsigned int flags = OBJECT_INFO_QUICK; |
745f7a8c | 759 | |
024aa469 TI |
760 | if (use_oidset && |
761 | !oidset_contains(&loose_oid_set, &ref->old_oid)) { | |
762 | /* | |
763 | * I know this does not exist in the loose form, | |
764 | * so check if it exists in a non-loose form. | |
765 | */ | |
766 | flags |= OBJECT_INFO_IGNORE_LOOSE; | |
767 | } | |
012a1bb5 | 768 | |
024aa469 TI |
769 | if (!has_object_file_with_flags(&ref->old_oid, flags)) |
770 | continue; | |
c251c83d | 771 | o = parse_object(&ref->old_oid); |
745f7a8c NTND |
772 | if (!o) |
773 | continue; | |
774 | ||
775 | /* We already have it -- which may mean that we were | |
776 | * in sync with the other side at some time after | |
777 | * that (it is OK if we guess wrong here). | |
778 | */ | |
779 | if (o->type == OBJ_COMMIT) { | |
780 | struct commit *commit = (struct commit *)o; | |
781 | if (!cutoff || cutoff < commit->date) | |
782 | cutoff = commit->date; | |
783 | } | |
784 | } | |
785 | ||
024aa469 TI |
786 | oidset_clear(&loose_oid_set); |
787 | ||
88e2f9ed JT |
788 | if (!args->no_dependents) { |
789 | if (!args->deepen) { | |
790 | for_each_ref(mark_complete_oid, NULL); | |
791 | for_each_cached_alternate(mark_alternate_complete); | |
792 | commit_list_sort_by_date(&complete); | |
793 | if (cutoff) | |
794 | mark_recent_complete_commits(args, cutoff); | |
795 | } | |
745f7a8c | 796 | |
88e2f9ed JT |
797 | /* |
798 | * Mark all complete remote refs as common refs. | |
799 | * Don't mark them common yet; the server has to be told so first. | |
800 | */ | |
801 | for (ref = *refs; ref; ref = ref->next) { | |
802 | struct object *o = deref_tag(lookup_object(ref->old_oid.hash), | |
803 | NULL, 0); | |
745f7a8c | 804 | |
88e2f9ed JT |
805 | if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE)) |
806 | continue; | |
745f7a8c | 807 | |
88e2f9ed JT |
808 | if (!(o->flags & SEEN)) { |
809 | rev_list_push((struct commit *)o, COMMON_REF | SEEN); | |
745f7a8c | 810 | |
88e2f9ed JT |
811 | mark_common((struct commit *)o, 1, 1); |
812 | } | |
745f7a8c NTND |
813 | } |
814 | } | |
815 | ||
f2db854d | 816 | filter_refs(args, refs, sought, nr_sought); |
745f7a8c NTND |
817 | |
818 | for (retval = 1, ref = *refs; ref ; ref = ref->next) { | |
1b283377 | 819 | const struct object_id *remote = &ref->old_oid; |
745f7a8c NTND |
820 | struct object *o; |
821 | ||
1b283377 | 822 | o = lookup_object(remote->hash); |
745f7a8c NTND |
823 | if (!o || !(o->flags & COMPLETE)) { |
824 | retval = 0; | |
1b283377 | 825 | print_verbose(args, "want %s (%s)", oid_to_hex(remote), |
0d789a5b | 826 | ref->name); |
745f7a8c NTND |
827 | continue; |
828 | } | |
1b283377 | 829 | print_verbose(args, _("already have %s (%s)"), oid_to_hex(remote), |
0d789a5b | 830 | ref->name); |
745f7a8c | 831 | } |
a1c6d7c1 JT |
832 | |
833 | save_commit_buffer = old_save_commit_buffer; | |
834 | ||
745f7a8c NTND |
835 | return retval; |
836 | } | |
837 | ||
838 | static int sideband_demux(int in, int out, void *data) | |
839 | { | |
840 | int *xd = data; | |
9ff18faf | 841 | int ret; |
745f7a8c | 842 | |
9ff18faf | 843 | ret = recv_sideband("fetch-pack", xd[0], out); |
745f7a8c NTND |
844 | close(out); |
845 | return ret; | |
846 | } | |
847 | ||
848 | static int get_pack(struct fetch_pack_args *args, | |
849 | int xd[2], char **pack_lockfile) | |
850 | { | |
851 | struct async demux; | |
745f7a8c | 852 | int do_keep = args->keep_pack; |
984a43b9 JK |
853 | const char *cmd_name; |
854 | struct pack_header header; | |
855 | int pass_header = 0; | |
d3180279 | 856 | struct child_process cmd = CHILD_PROCESS_INIT; |
c6807a40 | 857 | int ret; |
745f7a8c NTND |
858 | |
859 | memset(&demux, 0, sizeof(demux)); | |
860 | if (use_sideband) { | |
861 | /* xd[] is talking with upload-pack; subprocess reads from | |
862 | * xd[0], spits out band#2 to stderr, and feeds us band#1 | |
863 | * through demux->out. | |
864 | */ | |
865 | demux.proc = sideband_demux; | |
866 | demux.data = xd; | |
867 | demux.out = -1; | |
df857572 | 868 | demux.isolate_sigpipe = 1; |
745f7a8c | 869 | if (start_async(&demux)) |
1dd73e20 | 870 | die(_("fetch-pack: unable to fork off sideband demultiplexer")); |
745f7a8c NTND |
871 | } |
872 | else | |
873 | demux.out = xd[0]; | |
874 | ||
745f7a8c | 875 | if (!args->keep_pack && unpack_limit) { |
745f7a8c NTND |
876 | |
877 | if (read_pack_header(demux.out, &header)) | |
1dd73e20 | 878 | die(_("protocol error: bad pack header")); |
984a43b9 | 879 | pass_header = 1; |
745f7a8c NTND |
880 | if (ntohl(header.hdr_entries) < unpack_limit) |
881 | do_keep = 0; | |
882 | else | |
883 | do_keep = 1; | |
884 | } | |
885 | ||
6035d6aa | 886 | if (alternate_shallow_file) { |
984a43b9 JK |
887 | argv_array_push(&cmd.args, "--shallow-file"); |
888 | argv_array_push(&cmd.args, alternate_shallow_file); | |
6035d6aa NTND |
889 | } |
890 | ||
88e2f9ed | 891 | if (do_keep || args->from_promisor) { |
745f7a8c NTND |
892 | if (pack_lockfile) |
893 | cmd.out = -1; | |
984a43b9 JK |
894 | cmd_name = "index-pack"; |
895 | argv_array_push(&cmd.args, cmd_name); | |
896 | argv_array_push(&cmd.args, "--stdin"); | |
745f7a8c | 897 | if (!args->quiet && !args->no_progress) |
984a43b9 | 898 | argv_array_push(&cmd.args, "-v"); |
745f7a8c | 899 | if (args->use_thin_pack) |
984a43b9 | 900 | argv_array_push(&cmd.args, "--fix-thin"); |
88e2f9ed | 901 | if (do_keep && (args->lock_pack || unpack_limit)) { |
da25bdb7 | 902 | char hostname[HOST_NAME_MAX + 1]; |
5781a9a2 | 903 | if (xgethostname(hostname, sizeof(hostname))) |
984a43b9 JK |
904 | xsnprintf(hostname, sizeof(hostname), "localhost"); |
905 | argv_array_pushf(&cmd.args, | |
906 | "--keep=fetch-pack %"PRIuMAX " on %s", | |
907 | (uintmax_t)getpid(), hostname); | |
745f7a8c | 908 | } |
c6807a40 | 909 | if (args->check_self_contained_and_connected) |
984a43b9 | 910 | argv_array_push(&cmd.args, "--check-self-contained-and-connected"); |
88e2f9ed JT |
911 | if (args->from_promisor) |
912 | argv_array_push(&cmd.args, "--promisor"); | |
745f7a8c NTND |
913 | } |
914 | else { | |
984a43b9 JK |
915 | cmd_name = "unpack-objects"; |
916 | argv_array_push(&cmd.args, cmd_name); | |
745f7a8c | 917 | if (args->quiet || args->no_progress) |
984a43b9 | 918 | argv_array_push(&cmd.args, "-q"); |
c6807a40 | 919 | args->check_self_contained_and_connected = 0; |
745f7a8c | 920 | } |
984a43b9 JK |
921 | |
922 | if (pass_header) | |
923 | argv_array_pushf(&cmd.args, "--pack_header=%"PRIu32",%"PRIu32, | |
924 | ntohl(header.hdr_version), | |
925 | ntohl(header.hdr_entries)); | |
745f7a8c NTND |
926 | if (fetch_fsck_objects >= 0 |
927 | ? fetch_fsck_objects | |
928 | : transfer_fsck_objects >= 0 | |
929 | ? transfer_fsck_objects | |
98a2ea46 JT |
930 | : 0) { |
931 | if (args->from_promisor) | |
932 | /* | |
933 | * We cannot use --strict in index-pack because it | |
934 | * checks both broken objects and links, but we only | |
935 | * want to check for broken objects. | |
936 | */ | |
937 | argv_array_push(&cmd.args, "--fsck-objects"); | |
938 | else | |
939 | argv_array_push(&cmd.args, "--strict"); | |
940 | } | |
745f7a8c NTND |
941 | |
942 | cmd.in = demux.out; | |
943 | cmd.git_cmd = 1; | |
944 | if (start_command(&cmd)) | |
1dd73e20 | 945 | die(_("fetch-pack: unable to fork off %s"), cmd_name); |
745f7a8c NTND |
946 | if (do_keep && pack_lockfile) { |
947 | *pack_lockfile = index_pack_lockfile(cmd.out); | |
948 | close(cmd.out); | |
949 | } | |
950 | ||
37cb1dd6 JL |
951 | if (!use_sideband) |
952 | /* Closed by start_command() */ | |
953 | xd[0] = -1; | |
954 | ||
c6807a40 NTND |
955 | ret = finish_command(&cmd); |
956 | if (!ret || (args->check_self_contained_and_connected && ret == 1)) | |
957 | args->self_contained_and_connected = | |
958 | args->check_self_contained_and_connected && | |
959 | ret == 0; | |
960 | else | |
1dd73e20 | 961 | die(_("%s failed"), cmd_name); |
745f7a8c | 962 | if (use_sideband && finish_async(&demux)) |
1dd73e20 | 963 | die(_("error in sideband demultiplexer")); |
745f7a8c NTND |
964 | return 0; |
965 | } | |
966 | ||
f2db854d JH |
967 | static int cmp_ref_by_name(const void *a_, const void *b_) |
968 | { | |
969 | const struct ref *a = *((const struct ref **)a_); | |
970 | const struct ref *b = *((const struct ref **)b_); | |
971 | return strcmp(a->name, b->name); | |
972 | } | |
973 | ||
745f7a8c NTND |
974 | static struct ref *do_fetch_pack(struct fetch_pack_args *args, |
975 | int fd[2], | |
976 | const struct ref *orig_ref, | |
f2db854d | 977 | struct ref **sought, int nr_sought, |
beea4152 | 978 | struct shallow_info *si, |
745f7a8c NTND |
979 | char **pack_lockfile) |
980 | { | |
981 | struct ref *ref = copy_ref_list(orig_ref); | |
1b283377 | 982 | struct object_id oid; |
745f7a8c NTND |
983 | const char *agent_feature; |
984 | int agent_len; | |
985 | ||
986 | sort_ref_list(&ref, ref_compare_name); | |
9ed0d8d6 | 987 | QSORT(sought, nr_sought, cmp_ref_by_name); |
745f7a8c | 988 | |
eb86a507 | 989 | if ((args->depth > 0 || is_repository_shallow()) && !server_supports("shallow")) |
1dd73e20 | 990 | die(_("Server does not support shallow clients")); |
a45a2600 | 991 | if (args->depth > 0 || args->deepen_since || args->deepen_not) |
79891cb9 | 992 | args->deepen = 1; |
745f7a8c | 993 | if (server_supports("multi_ack_detailed")) { |
1dd73e20 | 994 | print_verbose(args, _("Server supports multi_ack_detailed")); |
745f7a8c NTND |
995 | multi_ack = 2; |
996 | if (server_supports("no-done")) { | |
1dd73e20 | 997 | print_verbose(args, _("Server supports no-done")); |
745f7a8c NTND |
998 | if (args->stateless_rpc) |
999 | no_done = 1; | |
1000 | } | |
1001 | } | |
1002 | else if (server_supports("multi_ack")) { | |
1dd73e20 | 1003 | print_verbose(args, _("Server supports multi_ack")); |
745f7a8c NTND |
1004 | multi_ack = 1; |
1005 | } | |
1006 | if (server_supports("side-band-64k")) { | |
1dd73e20 | 1007 | print_verbose(args, _("Server supports side-band-64k")); |
745f7a8c NTND |
1008 | use_sideband = 2; |
1009 | } | |
1010 | else if (server_supports("side-band")) { | |
1dd73e20 | 1011 | print_verbose(args, _("Server supports side-band")); |
745f7a8c NTND |
1012 | use_sideband = 1; |
1013 | } | |
6e7b66ee | 1014 | if (server_supports("allow-tip-sha1-in-want")) { |
1dd73e20 | 1015 | print_verbose(args, _("Server supports allow-tip-sha1-in-want")); |
7199c093 | 1016 | allow_unadvertised_object_request |= ALLOW_TIP_SHA1; |
6e7b66ee | 1017 | } |
68ee6289 | 1018 | if (server_supports("allow-reachable-sha1-in-want")) { |
1dd73e20 | 1019 | print_verbose(args, _("Server supports allow-reachable-sha1-in-want")); |
68ee6289 FM |
1020 | allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1; |
1021 | } | |
745f7a8c NTND |
1022 | if (!server_supports("thin-pack")) |
1023 | args->use_thin_pack = 0; | |
1024 | if (!server_supports("no-progress")) | |
1025 | args->no_progress = 0; | |
1026 | if (!server_supports("include-tag")) | |
1027 | args->include_tag = 0; | |
0d789a5b | 1028 | if (server_supports("ofs-delta")) |
1dd73e20 | 1029 | print_verbose(args, _("Server supports ofs-delta")); |
0d789a5b | 1030 | else |
745f7a8c NTND |
1031 | prefer_ofs_delta = 0; |
1032 | ||
640d8b72 JH |
1033 | if (server_supports("filter")) { |
1034 | server_supports_filtering = 1; | |
1035 | print_verbose(args, _("Server supports filter")); | |
1036 | } else if (args->filter_options.choice) { | |
1037 | warning("filtering not recognized by server, ignoring"); | |
1038 | } | |
1039 | ||
745f7a8c NTND |
1040 | if ((agent_feature = server_feature_value("agent", &agent_len))) { |
1041 | agent_supported = 1; | |
0d789a5b | 1042 | if (agent_len) |
1dd73e20 | 1043 | print_verbose(args, _("Server version is %.*s"), |
0d789a5b | 1044 | agent_len, agent_feature); |
745f7a8c | 1045 | } |
508ea882 NTND |
1046 | if (server_supports("deepen-since")) |
1047 | deepen_since_ok = 1; | |
1048 | else if (args->deepen_since) | |
1049 | die(_("Server does not support --shallow-since")); | |
a45a2600 NTND |
1050 | if (server_supports("deepen-not")) |
1051 | deepen_not_ok = 1; | |
1052 | else if (args->deepen_not) | |
1053 | die(_("Server does not support --shallow-exclude")); | |
cccf74e2 NTND |
1054 | if (!server_supports("deepen-relative") && args->deepen_relative) |
1055 | die(_("Server does not support --deepen")); | |
745f7a8c | 1056 | |
f2db854d | 1057 | if (everything_local(args, &ref, sought, nr_sought)) { |
745f7a8c NTND |
1058 | packet_flush(fd[1]); |
1059 | goto all_done; | |
1060 | } | |
1b283377 | 1061 | if (find_common(args, fd, &oid, ref) < 0) |
745f7a8c NTND |
1062 | if (!args->keep_pack) |
1063 | /* When cloning, it is not unusual to have | |
1064 | * no common commit. | |
1065 | */ | |
1dd73e20 | 1066 | warning(_("no common commits")); |
745f7a8c NTND |
1067 | |
1068 | if (args->stateless_rpc) | |
1069 | packet_flush(fd[1]); | |
79891cb9 | 1070 | if (args->deepen) |
1a30f5a2 NTND |
1071 | setup_alternate_shallow(&shallow_lock, &alternate_shallow_file, |
1072 | NULL); | |
4820a33b | 1073 | else if (si->nr_ours || si->nr_theirs) |
beea4152 | 1074 | alternate_shallow_file = setup_temporary_shallow(si->shallow); |
6da8bdcb NTND |
1075 | else |
1076 | alternate_shallow_file = NULL; | |
745f7a8c | 1077 | if (get_pack(args, fd, pack_lockfile)) |
1dd73e20 | 1078 | die(_("git fetch-pack: fetch failed.")); |
745f7a8c NTND |
1079 | |
1080 | all_done: | |
1081 | return ref; | |
1082 | } | |
1083 | ||
f44af51d | 1084 | static void fetch_pack_config(void) |
745f7a8c | 1085 | { |
f44af51d TA |
1086 | git_config_get_int("fetch.unpacklimit", &fetch_unpack_limit); |
1087 | git_config_get_int("transfer.unpacklimit", &transfer_unpack_limit); | |
1088 | git_config_get_bool("repack.usedeltabaseoffset", &prefer_ofs_delta); | |
1089 | git_config_get_bool("fetch.fsckobjects", &fetch_fsck_objects); | |
1090 | git_config_get_bool("transfer.fsckobjects", &transfer_fsck_objects); | |
745f7a8c | 1091 | |
f44af51d | 1092 | git_config(git_default_config, NULL); |
745f7a8c NTND |
1093 | } |
1094 | ||
745f7a8c NTND |
1095 | static void fetch_pack_setup(void) |
1096 | { | |
1097 | static int did_setup; | |
1098 | if (did_setup) | |
1099 | return; | |
f44af51d | 1100 | fetch_pack_config(); |
745f7a8c NTND |
1101 | if (0 <= transfer_unpack_limit) |
1102 | unpack_limit = transfer_unpack_limit; | |
1103 | else if (0 <= fetch_unpack_limit) | |
1104 | unpack_limit = fetch_unpack_limit; | |
1105 | did_setup = 1; | |
1106 | } | |
1107 | ||
f2db854d JH |
1108 | static int remove_duplicates_in_refs(struct ref **ref, int nr) |
1109 | { | |
1110 | struct string_list names = STRING_LIST_INIT_NODUP; | |
1111 | int src, dst; | |
1112 | ||
1113 | for (src = dst = 0; src < nr; src++) { | |
1114 | struct string_list_item *item; | |
1115 | item = string_list_insert(&names, ref[src]->name); | |
1116 | if (item->util) | |
1117 | continue; /* already have it */ | |
1118 | item->util = ref[src]; | |
1119 | if (src != dst) | |
1120 | ref[dst] = ref[src]; | |
1121 | dst++; | |
1122 | } | |
1123 | for (src = dst; src < nr; src++) | |
1124 | ref[src] = NULL; | |
1125 | string_list_clear(&names, 0); | |
1126 | return dst; | |
1127 | } | |
1128 | ||
beea4152 | 1129 | static void update_shallow(struct fetch_pack_args *args, |
4820a33b | 1130 | struct ref **sought, int nr_sought, |
beea4152 | 1131 | struct shallow_info *si) |
a796ccee | 1132 | { |
910650d2 | 1133 | struct oid_array ref = OID_ARRAY_INIT; |
4820a33b | 1134 | int *status; |
beea4152 NTND |
1135 | int i; |
1136 | ||
79891cb9 | 1137 | if (args->deepen && alternate_shallow_file) { |
a796ccee | 1138 | if (*alternate_shallow_file == '\0') { /* --unshallow */ |
f932729c | 1139 | unlink_or_warn(git_path_shallow()); |
a796ccee NTND |
1140 | rollback_lock_file(&shallow_lock); |
1141 | } else | |
1142 | commit_lock_file(&shallow_lock); | |
1143 | return; | |
1144 | } | |
beea4152 NTND |
1145 | |
1146 | if (!si->shallow || !si->shallow->nr) | |
1147 | return; | |
1148 | ||
beea4152 NTND |
1149 | if (args->cloning) { |
1150 | /* | |
1151 | * remote is shallow, but this is a clone, there are | |
1152 | * no objects in repo to worry about. Accept any | |
1153 | * shallow points that exist in the pack (iow in repo | |
1154 | * after get_pack() and reprepare_packed_git()) | |
1155 | */ | |
910650d2 | 1156 | struct oid_array extra = OID_ARRAY_INIT; |
ee3051bd | 1157 | struct object_id *oid = si->shallow->oid; |
beea4152 | 1158 | for (i = 0; i < si->shallow->nr; i++) |
ee3051bd | 1159 | if (has_object_file(&oid[i])) |
910650d2 | 1160 | oid_array_append(&extra, &oid[i]); |
beea4152 NTND |
1161 | if (extra.nr) { |
1162 | setup_alternate_shallow(&shallow_lock, | |
1163 | &alternate_shallow_file, | |
1164 | &extra); | |
1165 | commit_lock_file(&shallow_lock); | |
1166 | } | |
910650d2 | 1167 | oid_array_clear(&extra); |
beea4152 NTND |
1168 | return; |
1169 | } | |
4820a33b NTND |
1170 | |
1171 | if (!si->nr_ours && !si->nr_theirs) | |
1172 | return; | |
1173 | ||
1174 | remove_nonexistent_theirs_shallow(si); | |
4820a33b NTND |
1175 | if (!si->nr_ours && !si->nr_theirs) |
1176 | return; | |
1177 | for (i = 0; i < nr_sought; i++) | |
910650d2 | 1178 | oid_array_append(&ref, &sought[i]->old_oid); |
4820a33b NTND |
1179 | si->ref = &ref; |
1180 | ||
48d25cae NTND |
1181 | if (args->update_shallow) { |
1182 | /* | |
1183 | * remote is also shallow, .git/shallow may be updated | |
1184 | * so all refs can be accepted. Make sure we only add | |
1185 | * shallow roots that are actually reachable from new | |
1186 | * refs. | |
1187 | */ | |
910650d2 | 1188 | struct oid_array extra = OID_ARRAY_INIT; |
ee3051bd | 1189 | struct object_id *oid = si->shallow->oid; |
48d25cae NTND |
1190 | assign_shallow_commits_to_refs(si, NULL, NULL); |
1191 | if (!si->nr_ours && !si->nr_theirs) { | |
910650d2 | 1192 | oid_array_clear(&ref); |
48d25cae NTND |
1193 | return; |
1194 | } | |
1195 | for (i = 0; i < si->nr_ours; i++) | |
910650d2 | 1196 | oid_array_append(&extra, &oid[si->ours[i]]); |
48d25cae | 1197 | for (i = 0; i < si->nr_theirs; i++) |
910650d2 | 1198 | oid_array_append(&extra, &oid[si->theirs[i]]); |
48d25cae NTND |
1199 | setup_alternate_shallow(&shallow_lock, |
1200 | &alternate_shallow_file, | |
1201 | &extra); | |
1202 | commit_lock_file(&shallow_lock); | |
910650d2 | 1203 | oid_array_clear(&extra); |
1204 | oid_array_clear(&ref); | |
48d25cae NTND |
1205 | return; |
1206 | } | |
1207 | ||
4820a33b NTND |
1208 | /* |
1209 | * remote is also shallow, check what ref is safe to update | |
1210 | * without updating .git/shallow | |
1211 | */ | |
1212 | status = xcalloc(nr_sought, sizeof(*status)); | |
1213 | assign_shallow_commits_to_refs(si, NULL, status); | |
1214 | if (si->nr_ours || si->nr_theirs) { | |
1215 | for (i = 0; i < nr_sought; i++) | |
1216 | if (status[i]) | |
1217 | sought[i]->status = REF_STATUS_REJECT_SHALLOW; | |
1218 | } | |
1219 | free(status); | |
910650d2 | 1220 | oid_array_clear(&ref); |
a796ccee NTND |
1221 | } |
1222 | ||
745f7a8c NTND |
1223 | struct ref *fetch_pack(struct fetch_pack_args *args, |
1224 | int fd[], struct child_process *conn, | |
1225 | const struct ref *ref, | |
1226 | const char *dest, | |
f2db854d | 1227 | struct ref **sought, int nr_sought, |
910650d2 | 1228 | struct oid_array *shallow, |
745f7a8c NTND |
1229 | char **pack_lockfile) |
1230 | { | |
745f7a8c | 1231 | struct ref *ref_cpy; |
beea4152 | 1232 | struct shallow_info si; |
745f7a8c NTND |
1233 | |
1234 | fetch_pack_setup(); | |
f2db854d JH |
1235 | if (nr_sought) |
1236 | nr_sought = remove_duplicates_in_refs(sought, nr_sought); | |
745f7a8c NTND |
1237 | |
1238 | if (!ref) { | |
1239 | packet_flush(fd[1]); | |
1dd73e20 | 1240 | die(_("no matching remote head")); |
745f7a8c | 1241 | } |
beea4152 NTND |
1242 | prepare_shallow_info(&si, shallow); |
1243 | ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought, | |
1244 | &si, pack_lockfile); | |
a49d2834 | 1245 | reprepare_packed_git(the_repository); |
4820a33b | 1246 | update_shallow(args, sought, nr_sought, &si); |
beea4152 | 1247 | clear_shallow_info(&si); |
745f7a8c NTND |
1248 | return ref_cpy; |
1249 | } | |
e860d96b MM |
1250 | |
1251 | int report_unmatched_refs(struct ref **sought, int nr_sought) | |
1252 | { | |
1253 | int i, ret = 0; | |
1254 | ||
1255 | for (i = 0; i < nr_sought; i++) { | |
d56583de | 1256 | if (!sought[i]) |
e860d96b | 1257 | continue; |
d56583de MM |
1258 | switch (sought[i]->match_status) { |
1259 | case REF_MATCHED: | |
1260 | continue; | |
1261 | case REF_NOT_MATCHED: | |
1262 | error(_("no such remote ref %s"), sought[i]->name); | |
1263 | break; | |
1264 | case REF_UNADVERTISED_NOT_ALLOWED: | |
1265 | error(_("Server does not allow request for unadvertised object %s"), | |
1266 | sought[i]->name); | |
1267 | break; | |
1268 | } | |
e860d96b MM |
1269 | ret = 1; |
1270 | } | |
1271 | return ret; | |
1272 | } |